include/effects/SkOffsetImageFilter.h

/*
 * Copyright 2012 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkOffsetImageFilter_DEFINED
#define SkOffsetImageFilter_DEFINED

#include "SkSingleInputImageFilter.h"
#include "SkPoint.h"

class SK_API SkOffsetImageFilter : public SkSingleInputImageFilter {
public:
    SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL);
    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter)

protected:
    SkOffsetImageFilter(SkFlattenableReadBuffer& buffer);
    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;

    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
                               SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
    virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE;

private:
    SkVector fOffset;

    typedef SkSingleInputImageFilter INHERITED;
};

#endif